Across
- 4. large section of the Pacific Ocean which contains thousands of islands
- 6. region in the middle east along the Tigris and Euphrates rivers
- 7. land bridge that stretched across parts of the Bering Sea
Down
- 1. period of geological history where glaciers cover large portions of earth's surface
- 2. mass movement of people from one part of the world to another
- 3. second largest continent on Earth
- 5. second smallest continent on Earth